Assessment of Atomic Mobilities for bcc Phase in the Ti-Nb-V System

被引：3

作者：

Wei, Zhenbang ^{[1
,2
]}

Wang, Cuiping ^{[1
,2
]}

Qin, Shiyang ^{[1
,2
]}

Lu, Yong ^{[1
,2
]}

Yu, Xiang ^{[1
,2
]}

Liu, Xingjun ^{[1
,2
,3
,4
]}

机构：

[1] Xiamen Univ, Coll Mat, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Fujian Prov Key Lab Mat Genome, Xiamen 361005, Peoples R China

[3] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Shenzhen 518055, Peoples R China

[4] Harbin Inst Technol, Inst Mat Genome & Big Data, Shenzhen 518055, Peoples R China

来源：

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2020年 / 41卷 / 03期

关键词：

atomic mobility database; bcc phase; CALPHAD; Ti-Nb-V; TITANIUM-ALLOYS; THERMODYNAMIC CALCULATION; MECHANICAL-PROPERTIES; DIFFUSION; BIOMATERIALS; COEFFICIENTS; SEPARATION; MO; CR;

D O I：

10.1007/s11669-020-00801-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, diffusion couples of bcc phase Ti-Nb-V have been prepared and annealed at different temperatures such as 1273, 1373, and 1473 K. The concentration profile of each diffusion couple was measured with the help of electron microprobe analysis. In addition, the interdiffusion coefficients were obtained from the concentration profiles of diffusion couples, using numerical inverse and Whittle-Green methods. Combining with the thermodynamic database, the atomic mobilities of Ti, Nb and V in bcc Ti-Nb-V alloys were simulated by DICTRA package. In summary, our simulated atomic mobilities have a nice correlation with the experimental data and can reasonably describe the diffusion phenomena, such as diffusion paths and the concentration profiles of the bcc Ti-Nb-V ternary system.

引用

页码：191 / 206

页数：16

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